Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (11): 2041-2050.DOI: 10.3969/j.issn.1004-1524.2021.11.06

• Animal Science • Previous Articles     Next Articles

Screening and expression of cyclins gene in Hyriopsis cumingii

FENG Shanglea(), LI Xuenana, CHEN Yigea, LIU Ruiqia, BAI Zhiyia,b,c, LI Wenjuana,b,c,*()   

  1. a. Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
    b. Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
    c. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
  • Received:2021-01-16 Online:2021-11-25 Published:2021-11-26
  • Contact: LI Wenjuan

Abstract:

Cyclins plays an important role in cell cycle entry and progression, they can modulate the catalytic activities of cyclin-dependent kinases (CDKs), cyclins can binding the catalytic subunits of CDKs to regulate cell cycle.To select cyclin genes in Hyriopsis cumingii, explore the function of cyclins, total RNA from mixed sample of mantle, gonad, visceral mass and hemolymph were isolated and sequenced by Illumina HiSeq 2000.Based on the sequencing results, select the cyclin A, cyclin D2, cyclin E genes, through cloning their conserved sequence to verify cyclins genes in H. cumingii. Amino acid sequence similarity analysis showed that cyclin A, cyclin D2 and cyclin E of H. cumingii have high sequence identity with Crassostrea virginica and Crassostrea gigas. At the transcriptional level, quantitative real-time PCR (qRT-PCR) was used to detect expression of cyclin genes in different tissues. The result revealed that all cyclin genes were expressed in tested tissues (adductor, foot, visceral mass, gill, heart, mantle, gonad, blood) with variable levels, expression levels of cyclin A and cyclin E genes in gonad were significantly (P<0.05) higher than those in other tissues, expression level of cyclin D2 gene in gills was significantly(P<0.05) higher than those in other tissues.Between different genders in the same tissue, there were significant(P<0.05) gender differences in the relative expression of cyclin A gene in gonad, adductor, heart and blood.In gonads and heart,there were significant(P<0.05) gender differences in cyclin D2 and cyclin E expression.Cyclin A and cyclin E genes were significantly(P<0.05)higher expressed in female hearts and gonads than those in males,indicated that cyclin A and cyclin E genes play an important role in gonad development.The high expression of cyclin D2 in gill suggested that it might be associated with gill damage repair. In this study, cyclin A, cyclin D2 and cyclin E genes and their functions were preliminarily studied, which laid a molecular basis for further regulation of the cell growth in vitro.

Key words: transcriptome, Hyriopsis cumingii, cyclins, tissue expression profile

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